yucky textures in openGL on ATI Radeon 9000

  • Thread starter Thread starter taylorius
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taylorius

Hi, I have a windows openGL application that uses texture maps. On a
system with an Nvidia geForce 2, all is well. However, on my ATI
Radeon 9000 system, the textures look as if they are being stored in
something like 4 bits per channel colour. (The images I send to the
card are 24 bits per pixel).

If I change the Texture preference slider on the openGL tab in the
display settings from "quality" to "high quality", this fixes things.
My question is, is there a way of setting the card to "high quality"
texture mode from software. Perhaps an opengl extension command?

Many thanks for any help

Matt Taylor
 
taylorius said:
Hi, I have a windows openGL application that uses texture maps. On a
system with an Nvidia geForce 2, all is well. However, on my ATI
Radeon 9000 system, the textures look as if they are being stored in
something like 4 bits per channel colour. (The images I send to the
card are 24 bits per pixel).
Click to expand...

Are you using GL_RGBA8 or GL_RGBA for your internal format in
glTexImage2D()? Using GL_RGBA8 will likely give better results on an ATI.
 
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